I really love that this game features
lock-movement.

I am a huge fan of Contra:Shattered Soldier and it's pitch perfect lock-aim(moonwalk) and lock-movement mechanics. It was my first game of this type and I am pretty much a failure at all other such games because without the moonwalk, I am useless. This game lets me do it and I totally salute Treasure for giving me the shooting freedom I need to survive. I just wish Konami would incorporate the moonwalking into another Contra title. 3 and 4 got the lock-movement, but no moonwalk.